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Messages - wsp3

#1
Hello together

I have a problem and don't know what it is.
I have set up Opnsense with Adguard and Unbound and this works for 2-3 days without any problems. But then suddenly I have no or very slow page loading (but when the speed test loads it is the normal speed 500mbit/s). If I connect my computer directly to the router again, there is no problem. I also don't know where I could look to check what the problem is but I think it is DNS?

I have implemented my setup according to these instructions:
https://windgate.net/setup-adguard-home-opnsense-adblocker/

Here are all the settings where I have configured something:
https://imgur.com/a/AxGNcTO

My Internet is set up as follows (unfortunately I can't configure much on the ISP router and I have to use it)
ISP (ipv6 only) -> Router (from ISP) -> OPNsense -> UnmanagedSwitch -> Clients

It is also not fixed when I deactivate Adguard and set Unbound to port 53 again. I have to factory-reset the firewall.
Without Adguard everything works fine.

Does anyone have a solution?

Thank you very much

OPNsense: v25.1
Adguard: v0.107.63

P.S I just started OPNsense a few days ago for the screenshots, right now i am directly connected to the ISP-Router